Previously i have used oracle 10g version. but today i uninstalled oracle 10g version and installed oracle 11g version. after that i installed apex_4.1.1_en and create new workspace and install apex backups. then i tried to install database backup (i did backup as schema backup). but i couldn't install backup successfully. i couldn't create tables successfully. i got error saying tablespace does not exist as below.
tablespace 'APEX_11560722039238920' does not exist
how could i resolve this? how could i install my database backup ?